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Finding the Fourth Proportional to 189,169.83, 261,056.12 and 104,289.93

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Solution

The fourth proportional to 189,169.83, 261,056.12 and 104,289.93 is: 143,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,169.83 : 261,056.12 = 104,289.93 : x
  2. Step 2: Convert to fraction form
    189,169.83/261,056.12 = 104,289.93/x
  3. Step 3: Cross multiply
    189,169.83x = 261,056.12 × 104,289.93
  4. Step 4: Simplify right side
    189,169.83x = 27,225,523,959.42
  5. Step 5: Solve for x
    x = 27,225,523,959.42/189,169.83
  6. Step 6: Final answer
    x = 143,921.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.